jeudi 27 mars 2014

Why 4 coils?

Anyone got the theory on this for renault petrol engines?



Way back when we had the single ignition coil at least for 4 cyl engines.

12v-20000v transformer in essence, but engine was limited by mechanical points.

Then some may remember w

electronic ignition and plasma ignition,magnetic inductance for timing and an up to 50000v fast rise decay time transformer.

My last car had electronic ignition but regular plug leads and a centralised transformer.

Whats the idea of a seperate coil per cylinder?.seems retrograde.or are timings so precse now that its needed?.Surely even one coil for 2 cylinders would be enough?




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